National Register of Historic Places listings in Wilmington, Delaware
This is a list of properties listed on the National Register of Historic Places in Wilmington, Delaware: For reasons of size, the listings in New Castle County are divided into four lists: those in Wilmington, those in Newark, other listings in northern New Castle County (north of the Chesapeake and Delaware Canal), and those in southern New Castle County (south of the Chesapeake and Delaware Canal). There are 403 properties and districts listed on the National Register in the county.